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Obesity clinical trials recruiting in the U.S.

480 studies for Obesity are recruiting participants at sites across the United States.

Read about the causes of obesity and find out what you can do to decrease your risk of its associated health issues.

Cities with the most studies

• Houston, TX43 studies
• Chicago, IL41 studies
• New York City, NY40 studies
• San Antonio, TX40 studies
• Washington, DC33 studies
• Orlando, FL32 studies
• Dallas, TX30 studies
• Boston, MA28 studies
• Miami, FL27 studies
• Las Vegas, NV27 studies
• Baltimore, MD26 studies
• Jacksonville, FL25 studies
• St. Louis, MO25 studies
• Atlanta, GA24 studies
• Los Angeles, CA23 studies
• San Diego, CA23 studies
• Birmingham, AL23 studies
• Philadelphia, PA23 studies
• Phoenix, AZ22 studies
• Aurora, CO22 studies
• Indianapolis, IN20 studies
• Durham, NC20 studies
• Austin, TX20 studies
• Cincinnati, OH19 studies
• Salt Lake City, UT18 studies
• Arlington, VA18 studies
• Concord, CA18 studies
• Tucson, AZ18 studies
• Louisville, KY17 studies
• Havelock, NC17 studies
• Nashville, TN17 studies
• Johns Creek, GA16 studies
• Charlotte, NC16 studies
• Baton Rouge, LA15 studies
• Wilmington, NC15 studies
• Columbus, OH15 studies
• Rochester, NY14 studies
• Providence, RI14 studies
• Pittsburgh, PA13 studies
• Honolulu, HI13 studies

By state

• Alabama40 studies
• Arizona41 studies
• Arkansas13 studies
• California99 studies
• Colorado26 studies
• Connecticut22 studies
• District of Columbia12 studies
• Florida74 studies
• Georgia44 studies
• Hawaii13 studies
• Idaho21 studies
• Illinois57 studies
• Indiana25 studies
• Iowa9 studies
• Kansas32 studies
• Kentucky27 studies
• Louisiana33 studies
• Maine3 studies
• Maryland54 studies
• Massachusetts44 studies
• Michigan29 studies
• Minnesota29 studies
• Mississippi15 studies
• Missouri54 studies
• Montana9 studies
• Nebraska10 studies
• Nevada29 studies
• New Hampshire3 studies
• New Jersey20 studies
• New Mexico7 studies
• New York75 studies
• North Carolina60 studies
• North Dakota8 studies
• Ohio46 studies
• Oklahoma21 studies
• Oregon18 studies
• Pennsylvania48 studies
• Rhode Island19 studies
• South Carolina45 studies
• South Dakota6 studies
• Tennessee38 studies
• Texas81 studies
• Utah29 studies
• Virginia43 studies
• Washington31 studies
• West Virginia4 studies
• Wisconsin11 studies

Recently updated studies

From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.